OFFER Juniper JN0-660 PDF and JN0-660 VCE Full Version (51-60)

QUESTION 51
Click the Exhibit button. On your MX Series router, traffic using the critical scheduler is out of profile. All other data is currently in profile. Referring to the exhibit, which statement is correct?

A.    The critical queue is serviced before the less-critical queue.
B.    The critical queue is serviced after the left-over queue.
C.    The critical queue is serviced before the data queue.
D.    The critical queue is serviced before the voice queue.

Answer: B

QUESTION 52
Click the Exhibit button. All networks shown in the exhibit contain more than one BGP speaking router. You operate ISP A. You must ensure that customer Y sends their traffic to you over the directly connected link but customer Y is not used for transit into your network. What do you do to accomplish this?

A.    Advertise routes to customer Y with the well-known no-transit community.
B.    Advertise routes to customer X with the well-known no-advertise community.
C.    Advertise routes to customer Y with the well-known no-export community.
D.    Advertise routes to customer X with the well-known as-transit community.

Answer: C

QUESTION 53
Which two statements are true about OSPFv3? (Choose two.)

A.    OSPFv3 uses a 32-bit router ID to uniquely identify a node in the network.
B.    OSPFv3 uses a 128-bit router ID to uniquely identify a node in the network.
C.    OSPFv3 routes are always preferred over OSPFv2 routes for all traffic.
D.    OSPFv3 and OSPFv2 can be configured at the same time.

Answer: AD

QUESTION 54
Click the Exhibit button. As shown in the exhibit, you have an adaptive LSP that requires 85 Mbps. The LSP is configured with a primary path and a secondary path in standby mode. All connections in the MPLS network are Fast Ethernet. Which statement is correct?

A.    The primary and secondary paths are in an up state and operational.
B.    The primary and secondary paths are in a down state and not operational.
C.    The secondary path is in a down state and not operational.
D.    The primary path is in a down state and not operational.

Answer: A

QUESTION 55
You have configured MPLS and RSVP in your network using all of the Junos defaults. You established an LSP in your network which is reporting an up status but no traffic is using it. Which two statements reflect potential causes for this issue? (Choose two)

A.    The LSP egress address is a physical interface address
B.    family MPLS was omitted from the router configurations
C.    No BGP routes are being advertised from the remote neighbor
D.    The LSP egress address does not match the BGP next-hop address

Answer: CD

QUESTION 56
You have been asked to provision a service provider’s network to accommodate Layer 3 VPNs as defined in RPC 4364.
Which three tasks must be performed before the provider core is ready to carry VPN traffic? (Choose three.)

A.    All P routers and PE routers must be configured to support MPLS administrative-groups (colors)
B.    All PE routers must be configured to support Multiprotocol BGP (MP-BGP)
C.    All P routers and PE routers must have a signaling protocol such as RSVP or LDP enabled
D.    All P routers and PE routers must have a discovery protocol such as LLDP or CDP enabled
E.    All P routers and PE routers must have MPLS reach ability to PE routers

Answer: BCE

QUESTION 57
Which statement is true about the operation of Layer 2 VPNs?

A.    Layer 2 VPNs require that CE devices use the same Layer 2 encapsulation
B.    Layer 2 VPNs do not permit CE devices to operate a Layer 3 protocol with each other
C.    Service provider routers must evaluate the IP header of packets as they traverse their network
D.    Layer 2 VPNs allow CEs to use different encapsulations on either side of the VPN

Answer: D

QUESTION 58
Click the Exhibit button. Given the drop profile in the exhibit, what is the drop probability when the buffer reaches 90% full?

A.    60%
B.    70%
C.    85%
D.    90%

Answer: B

QUESTION 59
Click the Exhibit button. All routers in the exhibit are running IS-IS level 2 routing. The wide-metrics-only parameter is configured on all routers. Which metric does R1 see for the path to R4?

A.    136
B.    138
C.    310
D.    320

Answer: D

QUESTION 60
Click the Exhibit button. Referring to the exhibit, which type of traffic protection mechanism is used for the LSP?

A.    fast-reroute
B.    link-protection
C.    node-link-protection
D.    secondary

Answer: B

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